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针对深空探测接近段自主导航高精度、高可靠性和实时性的要求,提出在轨融合光学测量信息和无线电测量信息的接近段自主导航方法.为选择合适的光学测量信息和无线电信息在轨融合,结合线性协方差分析方法和基于B平面参数的误差分析方法,分析了不同光学观测信息和无线电测量信息在轨融合的导航方案,说明了提出的自主导航方法可有效提高导航精度,并对光学观测信息的选择给出了合理的建议.基于蒙特卡罗打靶的仿真分析验证了所提出分析方法的有效性.
In order to meet the requirements of high accuracy, high reliability and real-time performance of autonomous navigation in deep space exploration, a method of autonomous navigation is proposed, which integrates optical measurement information and radio measurement information in-orbit .In order to select appropriate optical measurement information and radio information in-orbit Combining the linear covariance analysis method and the error analysis method based on the B-plane parameter, the navigation scheme of different optical observation information and radio measurement information in-orbit fusion is analyzed, and the proposed autonomous navigation method can effectively improve the navigation accuracy. The selection of optical observation information gives some reasonable suggestions.The simulation analysis based on Monte Carlo target verifies the validity of the proposed analysis method.